Electroresponsive device.



No 810,311. PATE-NTED JAN. 16. 1906. V

v B. A. TBRPENING.

ELEGTRORBSPONSIVE DEVICE.

APPLICATION FILED 1730.17, 1904.

2 sums-81mm 1.

No. 810,311, PATENTED JAN. 16, 1906.

E. A. TERPENING.

BLEUTRORESPONSIVE DEVICE APPLZGATIOH FILED DEC. 17, 1904.

2 sHEETs-s1ImT 2.

@ am Q @m yijl To (ell La/tom it may concern.-

nmran surges PATENT OFFICE.

Emma A. 'rnarsms'e, or cnivnsno, ILLINOIS.

ELECTRORE$PONS1VE DEVICE.

Specification of Letters Patent.

Applizritiou filed December 17, 1904. Serial No. 237,322.

No. 810,311. Patented Jan. 16, 1906.

Be it known that I, ELMER A. TERPENING, for purposes of a full disclosure, I have hereof Geneseo, 111 the county of Henry and State i in illustrated the application of my invention of llllIlOlS, have invented certain new and to the three uses wlnchlhave abovespecified.

' limit my invention to such applications, but

useful Improvements in Electroresponsive in the drawings, Figure 1 is a front view or Devices; and I hereby declare that the folelevation of an embodiment of my invention lowing is a full, clear, and exact description well adapted for employment as a relay in thereof, reference being had to the accomconjunction with telephone appliances. Fig. panying drawings, which form part of this 2 is a plan view thereof. Fig. 3 is a section specification. on line 3 3 of Fig. 1. Fig. 4 is a diagram- My invention relates to improvements in matic plan of a device adapted for actuating signaling apparatus, and has for one of its. step-by-step selective apparatus for tele-. primary objects to provide an electricallyphone purposes, and Fig. 5is adiagrammatic responsive apparatus which will. be highly 5 illustration of an application of my invention sensitive and relatively powerful in its .inc 1 to a telegraph-relay. 'chanical actions occasioned by its eiectric Throughout the drawings like numerals of sensibility. reference refer always to like parts.

In many types 'of electric installation it is Referring now to the specific construction highly desirable to have an electroresponsive of current-responsive device shown. in Figs. device of high sensibility wherein the passage I 1, 2, and 3, 10 indicates a suitable base upon of very weak electric currents willproduce which mounted in asuitable supportingpower sufficient to perform certain mechantral stations should be e nipped with elec 'be'increased, and in many instances iron skilled in the art, and Without intending to mechanical movements of'sonie part of thel frame structure, generally indicated as 11, responsive apparatus of relatively great two sets of magnets 12 12 and 13 13, preferably all permanent horseshoe-magnets. The,

magnets of the two sets have their arms spread to different extents and are so disposed and supported in frame 11 that the poles of the magnets '13 13 extend between the poles of the magnets 12 12 and are suitably separatcd therefrom. The magnets are so arranged that the magnets 12 12 of the outer set have their like poles together, and the inner magnets 13 13 have their like poles together;

but the two sets of magnets are arranged with their opposite poles in confronting relation-that is to say, the ne ative oles of the outer magnets 12 12 confront t e positive poles of the inner magnets13 13, and vice versa, so that a very strong magnetic field is ical work, suchas the operation of an auxiliary electric-circuit closer, the release of a signal mechanism, or the like. For eXample, in telephony it is highly desirable that centroresponsive apparatus of such electric sensibility and mechanical efi'iciency for inclu sion in the calling-circuit and association with the signaling apparatus designed to attract the attention of the operator when a call is received. Further, it is advantageous in telephone selective call systems to provide such a sensitive and efficient electroresponsive device in association with step-by-step selective mechanism to actuate such selective mechanism, and in telcgraphy it is highly advantageous to employ an electroresponsive device with the characteristics of great sensibility and relatively high mechanical efliciency described as a relay, as thereby the distance of transmission bya single line may between the inner and outer sets of'poles.

Any suitable number of magnets 12 12 and wires may be employed where copper wires are now necessitated by the relatively low sensibility and efficiency of relays of the type now in use in which the current required to operate the mechanical parts must be relatlvely strong. Numerous other advantageous applications of electroresponsive de vices having the characteristics of the device of my present invention will occur to those 13 13 may be provided, the magnets of like formed in the space intervening on each side 14 is wounda strip 14 extending between the arms of the inner magnet 13 13. Upon this coil-frame coil 15 ,of suitable fine wire for a purpose to be described. The arrangement of the coil-frame 14 is such that it may, oscillate through a small angle between the magnets, and to this end it is maintained in vertical position in suitableinsulating-bearings 116 16, but is preferably freely suspends edtherein by a wire 17 (preferably. of German silver or like material) at its upper end,

posts 20 and 23, it will be understood, are

designed to receive the wire leading from the exterior circuit'with which the electroreto be connected to I'GCBIVG,

. sponsive device is its actuating-current.

I have found that the construction above described provides an eleotroresponsive member of very great sensitiveness and of high mechanical efficiency. The arrangement of the magnets relative to the coil is such that one magnet presents its poles to the exterior of the coil' and the other magnet presents its poles to the interior of the coil, affording thereby a very strong magnetic field in which the coil works, renders the coil extremely sensitive to current, and a'very weak current passing through the coil will cause, its strong deflection in one direction or the other, according to the direction in which the current passes therethrough. Further, I have found that an apparatus embodying such an ar rangement of coils and magnets is not susceptible to many of the troubles, suchas hysteresis, which affect polarized-relaysand such electroresponsive devices as have been heretofore commonly employed. The efli-.

ciency of the responsive device or the'torsional pull of the coil, even under very weak current, 18 so strong that its action may be utilized for many purposes.

In the embodiment of my vinvention shown in Figs. 1, 2, and 3 I have'illustrated a construction wherein the apparatus acts as a relay, a secondary circuit being controlled through a circuit make-and-break device by the movement of the oscillatingcoil. urther, in such embodiment I have shown a means for rendering the a paratus operatively sensitive to current 0 direction only, and the specific means wherethese results I will now describe. 24 indicates a stationary contactscrew carried by a conducting strip 25,

' 26 to form a stop understood by those skilled in the art.

' rod 36, suitably secured to the frameiwri one nature and] mounted in an insulating-block 26 above a re cess formed in the face of said block. 27 indicates the movable contact-point playing vertically in, the recess in the block and car'- rid by a rocking shaft 28, transversely mounted in insulated bearings .29 29, suported in any suitable manner. From the shaft 28 depends a vertical rod 30, the lower end of which is operatively associated with retardin device to be hereinafter described. Interme iate its end the the slotted end of an arm 31, the opposite end of which is secured to the central piece 14 of the oscillating coil 15. The movable contact part 27,.is preferably adjusted as to balance by a Weight 32, mountedfor adjustment u on a rod 33, extending at right angles to t e axis of the shaft 28. I prefer that the lower end of the rod 33 be'extcnded forward, as at 33, to contact with the stationary contact member and itsinsulating-block to limit the throw of the movable contact member in either direction and take the strain therefrom, as will be well The retarding device heretofore adverted to preferably a dash-pot and in the construction shown comprises a licurid-receptacle 3 1, suitably supportedmund containing a casing 35, open at one side and supported as upon a the dash-pot plunger secure to Preferably the plunger 37 oarcrlora'tion cov ered on one side by a va ve 38, so that the member 37 is i'elatively quickly movable in one direction and relatively slow of movement in the other direction. Preferably also for the present purpose the direction in which the'plunger 37 is freelj movable is that which corresponds with t is movement of the movable contact member 37 away from its stationary contact-point 24. Now it will be apparent that if current is passed through the coil 15 in one direction it tends to throw the arm through the stem 30 and rock-shaft 28 it moves the movable contact member 27 into contact-making position relative to its sta tionary member 24. In causing such move ment ofthe contact parts it will .be noticed the coil has to overcome sistance of the dash-pot, the valve 38 closing the aperture or plunger 37 when said plunger is moved to the left, Fig. 3. If current be passed through the coil in the opposite direction, it tends to move the contact part 27 to itsutmost limit away from the stationary contact member 24 or until the stop-rod 33 contacts with the frame but in so doing the coil has to overcome the minimum resistance of the'dash-pot, the valve 38 whereof opens to move ent in this said direction. The resistance o' a dash-pot in a device of this character is suflicient to render the actionof the 37 indicates the rod 30. trally perforated. The

rod 30 isspanned by- 31 in such direction that the maximum re- I an alternating current of any ordinary freby those skilled in the art.

' said coil for oscillation, means for retarding I contact devices sluggish enough to prevent quency from ever causing contact to be made between the contact members, and it will be apparent that the val'vearrangement of the dash-pot making its resistance to movement in opposite directions unequal causes the v plunger to'work in the direction tendin to move the contact members to their farthest separated position when alternating current asses through the coil, andso reduces the iability of accidental closingof the contact parts. The contact parts 27 and 24 are shown as connected by wires 39 and 40 with. binding-posts 41 and 42, which,it will be understood, form part of the circuit to be controlled by the relay'-such, for instance, an annunciator or drop-circuit of telephoneswitchboard. Thus in Figs. 4 and 5 l have illustrated two of the many possible applica-' tions of my invention wherein the coil 15 is arran ed in each case in a strong magnetic field b etween the sets of magnets 12 12 and 13 13, as heretofore described, but wherein the retarding device is omitted.

In Fig. 4 the rod 31, connected with the coil-frame 14, as before described, carries at its extremity a pawl 50, arranged to act upon a ratchet-wheel 51. It will be apparent that intermittent current of proper direction, al ternately advancing and retracting the pawl 51, advances the ratchet. Such a movement is of wide applicability and may be used in step-.by-step selective telephone si nal apparatus and elsewhere, as will be un erstood In Fig. 5 I have shown diagrammatically the embodiment of my invention in a telegraph-relay, the arm 81 actuating a movable contact part 52' of a normally open circuit 53, including a source of current-supply 54 and a telegrapl1-sounrler 55.

While I have herein particularly described certain advantageous embodiments of my invention, it is for full disclosure that details are shown and described and without intent to limit myself thereto further than as specified in the claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. In a current-responsive device adapted for actuation by feeble currents, two horse shoe-magnets arranged with opposite poles in proximity to leave therebetween two spaces constituting two strong magnetic fields, a coil havingits two sides in said spaces and adapted for connection in a line, means for suspending the oscillation ofsaid coil, and working parts associated with the coil to derive their worl mg power irom the oscillation of said 0011.

2. in a current-responsive device two magnets arranged with opposite poles in sepa-- rated arrangement in such proximity that l they jointly create two magnetic fields, and a coil supported for oscillation with its windings passing between said poles of the mag nets, one side of such winding lying in each magnetic field, and said coilbeing arranged for connection in a circuit. y

3. In a current-responsive device, two magnets arranged with opposite poles in se arated arrangement in such proximity tat they ointly create two magnetic fields, a coil adapted for connection in an electric circuit having its windings passing between the said poles of the, magnets, one side lying in each magnetic field, said coil being supported for deflection, and working parts associated'with the coil to derive their working power from its oscillation.

in a current-responsive device, perma nent magnets arranged with the poles of one bet-ween the poles of the other, a coil suspended for oscillation with its windings passing down between the proximate poles of the magnets on one side and up-between the opposite proximate poles of the magnets on the other side, and working devices connected with the coil for actuation by its oscillation.

5'. In a current-responsive device, two magnets arranged with opposite poles in sepa rated arrangement in such proximity that they ointly create two magnetic fields, a coil adapted for connection in an electric circuit having its windings passing between said poles of the magnets, one side of such coil lying in each magnetic field, and said coil be i ing supported for deflection, Working parts IO associated with the coil to derive their working power from its oscillation, and means for retarding the oscillation of the coil, arranged to effect a greater retardation of the movement of the coil in one direction than of its 10 movement in the other direction.

In a current-responsive device two mag-- nets arranged with opposite poles in separated arrangement in such proximity that they ointly create two magnetic fields, a coil 1 1 '0 adapted for connection in an electric circuit having its windings passing between said poles of the magnets, one side of the coil lying in each magnetic field, and said coil being supported for deflection, contact parts com prising amovable member adapted to be 0 eratively moved by deflection of the coil in one direction and a dash-pot operatively associated with the coil arranged to effect a greater retardation of the movement of the coil in the direction to operate the contact than to its movement in the opposite direction.

7. In a current-responsive device, a pair of permanent magnets, arranged With their opposite poles in separated but proximate relar 2 5 tion to create two strong magnetic fields, a single coil supported for oscillation with its ides respectively in said fields, said coil ben adapted for connection in an electric cire and signaling devices operatively con- 3 poles of the other as to neoted with said. coil for actuation by movement thereof in one direction. 1

8. A relay comprising two permanent horse; shoe-magnets arranged with the polesolt one in such separated, proxin'iate relation to the establish 'tliereb etween two strong ioint magnetic fields, a coil. mounted for deflection with its windings passing between. two proximate poles of the nagnets one side and between the remaining pol on the other and ada ted forconnectien in a main circuit, contact evices arranged for connection in another circuit, and operative connections between the movable element of said contact devices and the oscillating coil whereby said contact devices are actuated by movement of the coil.

9. A relay comprising a permanent magnet arranged to constitute a magnetic field, a coil supported. for oscillation in the field, means for retarding the oscillation of said coil, contact devices including a movable part and operative connection between the 'movable part of the contact device and the oscillating coil.

10. In com nation, a pair of horseshoemagnets with their opposing poles in proximity and parallelism in a'connnon. plane, a singie coil adapted for connection in acircuit suspended with its sides passingbetwaen the opposite coacting poles of the two magnets, a

contact device, a dash-pot connected with the contactdevice, and an operative connection between the coil and said connected parts whereby movement of the coil actuates the contact device and is retarded by the daslnpot.

1 1. In combination, a pair of magnets with their opposing poles arranged in proximity to jointly create two strong magnetic fields, a coil adapted for connection in a circ uit supported for deflection with its sides respectively in said two fields, a dash-pot having its movable element suspended, a connection between said coil and the suspension of the dash-pot, and workin parts associated with the coil to derive their working power from oscillation of the coil. v

In testimony that I claim the foregoing as my own I affix my signature in presence of 50 two witnesses.

ELMER A. TERPENING. 

